void InitH263Decoder()
{
// Open log file
dlog=fopen("decoder.log","w");
if(dlog==NULL)
{
trace=0;
quiet=1;
verbose=0;
}
framerate=0; // not used...
outtype=0; // YUV
temp_ref = 0;
prev_temp_ref= -1;
ld = &base;
initbits(); // Setup source buffer pointers
InitConvertTable();
// For debugging....
// trace=1; // trace output
// quiet=0; // don't keep quiet print mesgs
}
int InitH263Decoder()
{
/* if(dlog==NULL)
{
trace=0;
quiet=1;
verbose=0;
__android_log_print(ANDROID_LOG_ERROR, "InitH263Decoder()","Unable to open log file: %s", strerror(errno) );
return -1;
}*/
framerate=0; // not used...
outtype=0; // YUV
temp_ref = 0;
prev_temp_ref= -1;
ld = &base;
initbits(); // Setup source buffer pointers
InitConvertTable();
myLog.WriteLog((char*)"InitH263Decoder()",(char*)"Init OK");
return 0;
// For debugging....
// trace=1; // trace output
// quiet=0; // don't keep quiet print mesgs
}
static int decore_init(int hor_size, int ver_size, unsigned long color_depth)
{
// init global stuff
ld = &base;
coeff_pred = &ac_dc;
initbits ();
// read first vol and vop
mp4_hdr.width = hor_size;
mp4_hdr.height = ver_size;
mp4_hdr.quant_precision = 5;
mp4_hdr.bits_per_pixel = 8;
mp4_hdr.quant_type = 0;
mp4_hdr.time_increment_resolution = 15;
mp4_hdr.complexity_estimation_disable = 1;
mp4_hdr.picnum = 0;
mp4_hdr.mb_xsize = mp4_hdr.width / 16;
mp4_hdr.mb_ysize = mp4_hdr.height / 16;
mp4_hdr.mba_size = mp4_hdr.mb_xsize * mp4_hdr.mb_ysize;
// set picture dimension global vars
{
horizontal_size = mp4_hdr.width;
vertical_size = mp4_hdr.height;
mb_width = horizontal_size / 16;
mb_height = vertical_size / 16;
coded_picture_width = horizontal_size + 64;
coded_picture_height = vertical_size + 64;
chrom_width = coded_picture_width >> 1;
chrom_height = coded_picture_height >> 1;
}
// init decoder
initdecoder();
switch (color_depth)
{
case 32:
convert_yuv = yuv2rgb_32;
break;
case 16:
convert_yuv = yuv2rgb_16;
break;
default:
convert_yuv = yuv2rgb_24;
break;
}
return 1;
}
static int decore_frame(unsigned char *stream, int length, unsigned char *bmp, int render_flag)
{
decore_stream = stream;
decore_length = length;
initbits ();
getvophdr(); // read vop header
get_mp4picture(bmp, render_flag); // decode vop
mp4_hdr.picnum++;
return 1;
}
int DecompressFrame(unsigned char *cdata,int size,unsigned char **outdata,int outsize)
{
static int first=1,framenum=0;
//Initialize output pointers...
yp=NULL;
up=NULL;
vp=NULL;
// Copy to other buffer can be done...
// So that source buffer will be free
cindex=0; // index into the cframe....
csize=size; // size of compressed frame
cframe=cdata; // pointer to compressed frme
//memcpy(cframe,cdata,size);
// Reset the pointers...
initbits();
// Get the frame header
getheader();
// If first time...then call initdecoder....
// This has to be done after calling getheader()
// because getheader() setup some variables using the information
// from header...
if (first)
{
initdecoder();
first = 0;
}
// Decompress the frame and get the picture frame in YUV format
getpicture(&framenum);
framenum++;
if(yp==NULL || up==NULL || vp==NULL)
{
myLog.WriteLog((char*)"DecompressFrame",(char*)"decompression failed...");
return 0;
}
*outdata = yp;
/*
if(yp!=NULL && up!=NULL && vp!=NULL){
FILE *fpyuv;
if (framenum==1)
fpyuv=fopen("/sdcard/video2.yuv","wb");
else
fpyuv=fopen("/sdcard/video2.yuv","ab");
if (fpyuv!=NULL){
char sMsgLog[128];
int iUVSize = (horizontal_size/2) * (vertical_size/2);
fwrite(yp,1,horizontal_size * vertical_size+(iUVSize*2), fpyuv);
fclose(fpyuv);
}
}*/
return 1;
// convert YUV to RGB
// ******* TODO *********
// check if outdata is enough to store rgb data
//
int totalsize=horizontal_size * vertical_size *4;
if(outsize< totalsize || outdata==NULL)
{
myLog.WriteLog((char*)"DecompressFrame",(char*)"Output buffer is not sufficient");
return 0;
}
// ConvertYUVtoRGB32(yp,up,vp,outdata,horizontal_size,vertical_size);
/*FILE *fpyuv;
char sFileName[128];
sprintf(sFileName, "/sdcard/video_%d.rgba", framenum);
fpyuv=fopen(sFileName,"wb");
if (fpyuv!=NULL){
fwrite(outdata,1,horizontal_size * vertical_size*4, fpyuv);
fclose(fpyuv);
}*/
//myLog.WriteLog((char*)"DecompressFrame()",(char*)"Decode SUCCESSFUL :-)");
return 1;
int DecompressFrame(unsigned char *cdata,int size,unsigned char *outdata,int outsize)
{
static int first=1,framenum=0;
//Initialize output pointers...
yp=NULL;
up=NULL;
vp=NULL;
// Copy to other buffer can be done...
// So that source buffer will be free
cindex=0; // index into the cframe....
csize=size; // size of compressed frame
cframe=cdata; // pointer to compressed frme
//memcpy(cframe,cdata,size);
// Reset the pointers...
initbits();
// Get the frame header
getheader();
// If first time...then call initdecoder....
// This has to be done after calling getheader()
// because getheader() setup some variables using the information
// from header...
if (first)
{
initdecoder();
first = 0;
}
// Decompress the frame and get the picture frame in YUV format
getpicture(&framenum);
framenum++;
if(yp==NULL || up==NULL || vp==NULL)
{
if(trace)
fputs("decompression failed...",dlog);
return 0;
}
// convert YUV to RGB
// ******* TODO *********
// check if outdata is enough to store rgb data
//
int totalsize=horizontal_size * vertical_size *3;
if(outsize< totalsize || outdata==NULL)
{
if(dlog)
fputs("Output buffer is not sufficient",dlog);
return 0;
}
ConvertYUV2RGB(yp,up,vp,outdata,horizontal_size,vertical_size);
return 1;
}
void mpeg2enc(UINT16 h_size,UINT16 v_size,UINT8* y_addr,UINT8* c_addr,UINT8* f_y_addr,UINT8* f_c_addr,UINT8* out_stream_buf,UINT32* out_stream_size)
{
UINT32 dest_size = *out_stream_size;
if(dest_size == 0) dest_size = 32768;
#if (CAPTURE_MODE==FRAME_CAPTURE)
prog_frame = 0;
g_mquant = 18;
#else //(CAPTURE_MODE==FIELD_CAPTURE)
prog_frame = 1;
g_mquant = 10;
#endif
do{
g_bs_ptr = out_stream_buf;
g_bs_len = 0;
initparam();
/* round picture dimensions to nearest multiple of 16 or 32 */
mb_width = (h_size+15)/16;
#if (CAPTURE_MODE==FRAME_CAPTURE)
mb_height = prog_seq ? (v_size+15)/16 : 2*((v_size+31)/32);
#else//(CAPTURE_MODE==FIELD_CAPTURE)
mb_height = prog_seq ? (v_size/2+15)/16 : 2*((v_size/2+31)/32);
#endif
mb_height2 = fieldpic ? mb_height>>1 : mb_height; /* for field pictures */
luma_width = 16*mb_width;
luma_height = 16*mb_height;
chrom_width = luma_width>>1;
chrom_height = luma_height>>1;
width2 = fieldpic ? luma_width<<1 : luma_width;
chrom_width2 = fieldpic ? chrom_width<<1 : chrom_width;
block_count = 6;//420
neworg[0] = f_c_addr;
neworg[1] = neworg[0]+luma_width*luma_height;
neworg[2] = neworg[1]+chrom_width*chrom_height;
format_transform(y_addr,c_addr,neworg[0],neworg[1],neworg[2],luma_width,luma_height);
initquantmat();
initbits();
putseq();
//soc_printf("mquant:%d,bs_len:%d\n",g_mquant,g_bs_len);
if(g_mquant == 62 && g_bs_len>dest_size)
{
soc_printf("ERROR: compressed size exceed buffer size!\n");
break;
}
if(g_bs_len*10/dest_size < 12)
g_mquant +=2;
else if(g_bs_len*10/dest_size < 15)
g_mquant +=4;
else if(g_bs_len*10/dest_size < 18)
g_mquant +=6;
else if(g_bs_len*10/dest_size < 21)
g_mquant +=8;
else
g_mquant +=10;
if(g_mquant > 62)
g_mquant = 62;
}while(g_bs_len > dest_size);
*out_stream_size = g_bs_len;
return ;
}
